Regensburg 2013 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 15: Poster Session
MM 15.25: Poster
Monday, March 11, 2013, 18:00–20:00, Poster E
Matrix-induced in situ growth of plasmonic Au nanoparticles for biological sensor devices — •Philipp Naujok1, Christian Katzer1, Peter Michalowski1, Frank Schmidl1, Markus Westerhausen1, Gabriele Schmidl2, Robert Mueller2, Jan Dellith2, Christa Schmidt2, Jacqueline Jatschka2, and Wolfgang Fritzsche2 — 1Institut für Festkörperphysik, Friedrich-Schiller-Universität Jena - Helmholzweg 5, D-07743 Jena, Germany — 2Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, D-07745 Jena, Germany
In the past years different methods such as wet chemical synthesis where established to fabricate metal nanoparticles which can be used in bio-photonic sensor devices. In order to overcome the multiple preparation steps and typical solution based problems like aggregation of particles, new in-situ methods of preparation directly on the substrate surface are highly favoured. The authors present a novel in-situ method of fabricating crystalline gold nanoparticles by self-organization using two different thin film matrices (YBa2Cu3O7−δ and SrTiO3). We will show that the interaction of nanoparticles and thin film matrix allows controlling not only the size (between 10 and several hundreds of nm) and distribution of gold nanoparticles but also their shape. A subsequent dissolution process of the matrix enables us to extract the nanoparticles to receive immobilized crystalline particles directly on a substrate surface. The spectral characterization of those particles will be presented based on microspectroscopy. [1] C. Katzer et al., J. Nanopart. Res. 14, 1285 (2012)